drivers/clk/mediatek/clk-mt2712-vdec.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2017 MediaTek Inc.
   4  * Author: Weiyi Lu <weiyi.lu@mediatek.com>
   5  */
   6
   7 #include <linux/clk-provider.h>
   8 #include <linux/platform_device.h>
   9
  10 #include "clk-mtk.h"
  11 #include "clk-gate.h"
  12
  13 #include <dt-bindings/clock/mt2712-clk.h>
  14
  15 static const struct mtk_gate_regs vdec0_cg_regs = {
  16         .set_ofs = 0x0,
  17         .clr_ofs = 0x4,
  18         .sta_ofs = 0x0,
  19 };
  20
  21 static const struct mtk_gate_regs vdec1_cg_regs = {
  22         .set_ofs = 0x8,
  23         .clr_ofs = 0xc,
  24         .sta_ofs = 0x8,
  25 };
  26
  27 #define GATE_VDEC0(_id, _name, _parent, _shift)                         \
  28         GATE_MTK(_id, _name, _parent, &vdec0_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
  29
  30 #define GATE_VDEC1(_id, _name, _parent, _shift)                         \
  31         GATE_MTK(_id, _name, _parent, &vdec1_cg_regs, _shift, &mtk_clk_gate_ops_setclr_inv)
  32
  33 static const struct mtk_gate vdec_clks[] = {
  34         /* VDEC0 */
  35         GATE_VDEC0(CLK_VDEC_CKEN, "vdec_cken", "vdec_sel", 0),
  36         /* VDEC1 */
  37         GATE_VDEC1(CLK_VDEC_LARB1_CKEN, "vdec_larb1_cken", "vdec_sel", 0),
  38         GATE_VDEC1(CLK_VDEC_IMGRZ_CKEN, "vdec_imgrz_cken", "vdec_sel", 1),
  39 };
  40
  41 static const struct mtk_clk_desc vdec_desc = {
  42         .clks = vdec_clks,
  43         .num_clks = ARRAY_SIZE(vdec_clks),
  44 };
  45
  46 static const struct of_device_id of_match_clk_mt2712_vdec[] = {
  47         {
  48                 .compatible = "mediatek,mt2712-vdecsys",
  49                 .data = &vdec_desc,
  50         }, {
  51                 /* sentinel */
  52         }
  53 };
  54 MODULE_DEVICE_TABLE(of, of_match_clk_mt2712_vdec);
  55
  56 static struct platform_driver clk_mt2712_vdec_drv = {
  57         .probe = mtk_clk_simple_probe,
  58         .remove = mtk_clk_simple_remove,
  59         .driver = {
  60                 .name = "clk-mt2712-vdec",
  61                 .of_match_table = of_match_clk_mt2712_vdec,
  62         },
  63 };
  64 module_platform_driver(clk_mt2712_vdec_drv);
  65
  66 MODULE_DESCRIPTION("MediaTek MT2712 Video Decoders clocks driver");
  67 MODULE_LICENSE("GPL");